FU 135
Brunvoll AS FU 135 — Tunnel thruster - large cruise vessels.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Inspect thruster tunnel space twice yearly for moisture, standing water, and leaks
Examine tunnel ends for cracks in gelcoat or laminate, check gasket seals for leaks
Clean thruster drive, propeller(s) and tunnel interior of marine growth and inspect for cracks or damage
Check for oil beneath propeller indicating seal leakage requiring replacement
Inspect and renew sacrificial anodes (zincs) annually minimum, more frequently depending on vessel location
Verify condition of helm control panels and joysticks for looseness, corrosion, UV damage
Check motor function and verify electrical/hydraulic supply lines, grease moving parts
Inspect gearbox, propeller connections, and shear pins for wear, especially with frequent use
Type-general inspection and maintenance points for this equipment category — not model-specific.
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